以1H,4H-6-硝基吡唑[4,3-c]并吡唑-3-羧酸为起始原料,经过一步脱羧硝化反应得到1H,4H-3,6-二硝基吡唑[4,3-c]并吡唑(DNPP),收率76.7%,然后与硝酸铅、3,6-二肼基-1,2,4,5-四嗪反应合成了DNPP碱式铅盐(PbDNPP)与DNPP的3,6-二肼基-1,2,4,5...以1H,4H-6-硝基吡唑[4,3-c]并吡唑-3-羧酸为起始原料,经过一步脱羧硝化反应得到1H,4H-3,6-二硝基吡唑[4,3-c]并吡唑(DNPP),收率76.7%,然后与硝酸铅、3,6-二肼基-1,2,4,5-四嗪反应合成了DNPP碱式铅盐(PbDNPP)与DNPP的3,6-二肼基-1,2,4,5-四嗪含能离子盐(DHT-DNPP)。采用红外光谱、1 H NMR、13 C NMR、质谱及元素分析等对其结构进行了表征,利用DNPP质谱裂解碎片信息,探讨了热解反应机理,揭示了其裂解微观反应过程。采用DSC和TG-DTG法研究了DNPP及其两种盐的热行为。结果表明,DNPP、Pb-DNPP和DHT-DNPP的放热分解峰分别为256.4、319.1和174.3℃,显示Pb-DNPP比DNPP和DHT-DNPP有更好的热稳定性。展开更多
The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The abso...The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The absorption spectrum of the colored metastable form SP3 shows prominent absorption peak at 560nm at 60℃?展开更多
文摘以1H,4H-6-硝基吡唑[4,3-c]并吡唑-3-羧酸为起始原料,经过一步脱羧硝化反应得到1H,4H-3,6-二硝基吡唑[4,3-c]并吡唑(DNPP),收率76.7%,然后与硝酸铅、3,6-二肼基-1,2,4,5-四嗪反应合成了DNPP碱式铅盐(PbDNPP)与DNPP的3,6-二肼基-1,2,4,5-四嗪含能离子盐(DHT-DNPP)。采用红外光谱、1 H NMR、13 C NMR、质谱及元素分析等对其结构进行了表征,利用DNPP质谱裂解碎片信息,探讨了热解反应机理,揭示了其裂解微观反应过程。采用DSC和TG-DTG法研究了DNPP及其两种盐的热行为。结果表明,DNPP、Pb-DNPP和DHT-DNPP的放热分解峰分别为256.4、319.1和174.3℃,显示Pb-DNPP比DNPP和DHT-DNPP有更好的热稳定性。
文摘The synthesis of an new photochromical compound,1,3,3 trimethyl 6′ (1 piperidinyl) spiro[2h indole 2,3′ [3H]pyridobenzoxazine (SP3),and an improved way for the synthesis of 6 hydroxyquinoline were descrided.The absorption spectrum of the colored metastable form SP3 shows prominent absorption peak at 560nm at 60℃?
